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. 2010 Jan 19;5(1):e8600. doi: 10.1371/journal.pone.0008600

Table 4. Non-trivial T-invariants.

T-invariant (Pathway) Transitions (Reactions)
Inline graphic Inline graphic, Inline graphic
Inline graphic Inline graphic, Inline graphic, Inline graphic, Inline graphic, Inline graphic
Inline graphic Inline graphic, Inline graphic, Inline graphic, Inline graphic, Inline graphic, Inline graphic, Inline graphic

Non-trivial T-invariants (in set notation) of the Petri net given in Figure 2, each defining a pathway. Please note, (Inline graphic, Inline graphic) is not considered to be a trivial T-invariant.